diff options
Diffstat (limited to 'lib/dialyzer/src/dialyzer_dataflow.erl')
| -rw-r--r-- | lib/dialyzer/src/dialyzer_dataflow.erl | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/lib/dialyzer/src/dialyzer_dataflow.erl b/lib/dialyzer/src/dialyzer_dataflow.erl index 03f9684b02..b00e0465e0 100644 --- a/lib/dialyzer/src/dialyzer_dataflow.erl +++ b/lib/dialyzer/src/dialyzer_dataflow.erl @@ -58,10 +58,12 @@ t_fun_range/2, t_integer/0, t_integers/1, t_is_any/1, t_is_atom/1, t_is_atom/2, t_is_any_atom/3, t_is_boolean/2, - t_is_integer/2, t_is_nil/2, t_is_none/1, t_is_none_or_unit/1, + t_is_integer/2, t_is_list/1, + t_is_nil/2, t_is_none/1, t_is_none_or_unit/1, t_is_number/2, t_is_reference/2, t_is_pid/2, t_is_port/2, t_is_unit/1, - t_limit/2, t_list/0, t_maybe_improper_list/0, t_module/0, + t_limit/2, t_list/0, t_list_elements/2, + t_maybe_improper_list/0, t_module/0, t_none/0, t_non_neg_integer/0, t_number/0, t_number_vals/2, t_pid/0, t_port/0, t_product/1, t_reference/0, t_to_string/2, t_to_tlist/1, @@ -293,6 +295,7 @@ traverse(Tree, Map, State) -> t_is_any(ArgType) orelse t_is_simple(ArgType, State) orelse is_call_to_send(Arg) + orelse is_lc_simple_list(Arg, ArgType, State) of true -> % do not warn in these cases State1; @@ -2713,6 +2716,13 @@ is_call_to_send(Tree) -> andalso (Arity =:= 2) end. +is_lc_simple_list(Tree, TreeType, State) -> + Opaques = State#state.opaques, + Ann = cerl:get_ann(Tree), + lists:member(list_comprehension, Ann) + andalso t_is_list(TreeType) + andalso t_is_simple(t_list_elements(TreeType, Opaques), State). + filter_match_fail([Clause] = Cls) -> Body = cerl:clause_body(Clause), case cerl:type(Body) of |